Discovering new artists is one of the attractions of Audiogon. That's why I go to HiFi shows, for the same reason.
The whole music scene seems to have morphed into something new. Back in the 50's, 60's, an artist got a contract with a label, were promoted and became stars, or disappeared. Now there are 1000's of great bands, singers, Jazz groups out there, touring, recording in a garage, selling on line, whatever. How can anyone know about all of them, we all need a guiding hand.